January weather forecastBeaverton, OR
January
Weather in January
January in Beaverton, Oregon, tends to be a damp start to the year with cool temperatures and high humidity. Notably, the coldest minimum temperature of 35.1°F (1.7°C) occurs this month along with a sizable precipitation of 4.49" (114mm). The environmental conditions create an atmospheric grey tone as average daylight is a mere 9.2 hours. The glum overcast sky masks the sun, providing an average of only 4 hours of sunshine each day. The weather may occasionally bring flurries of snow, highlighting the city's winter tableau.Temperature
As Beaverton welcomes January, the average high-temperature stabilizes at a still chilly 46°F (7.8°C), showing little deviation from December's 44.2°F (6.8°C). Beaverton experiences an average low-temperature of 35.1°F (1.7°C) in the month of January.Humidity
In January, the average relative humidity is 83%.Rainfall
In Beaverton, in January, it is raining for 18.5 days, with typically 4.49" (114mm) of accumulated precipitation. In Beaverton, during the entire year, the rain falls for 173.2 days and collects up to 30.55" (776mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Beaverton, during January, snow falls for 1.3 days and regularly aggregates up to 0.63" (16mm) of snow. Throughout the year, there are 6.1 snowfall days, and 4.37" (111mm) of snow is accumulated.Daylight
In Beaverton, the average length of the day in January is 9h and 11min.On the first day of January, sunrise is at 7:51 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:15 pm PST.
Sunshine
In January, the average sunshine is 4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: During January, 2 as the daily maximum UV index converts into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Beaverton, OR
- Average high temperature in January: 46°F
The warmest month (with the highest average high temperature) is August (81.7°F).
The month with the lowest average high temperature is December (44.2°F).
- Average low temperature in January: 35.1°F
The month with the highest average low temperature is August (55.6°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure in January
Beaverton, OR
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in January
Beaverton, OR
- Average wind speed in January: 5.4mph
The windiest month (with the highest average wind speed) is January (5.4mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in January
Beaverton, OR
- Average humidity in January: 83%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is August (63%).
Average rainfall in January
Beaverton, OR
- Average rainfall in January: 4.49"
The wettest month (with the highest rainfall) is December (4.61").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in January
Beaverton, OR
- Average rainfall days in January: 18.5 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall in January
Beaverton, OR
- Average snowfall in January: 0.63"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Beaverton, OR
- Average snowfall days in January: 1.3 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Beaverton, OR
- Average daylight in January: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in January
Beaverton, OR
- Average sunshine days in January: 11 days
The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is March (8.6 days).
Average UV index in January
Beaverton, OR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Beaverton, OR
- Average cloud cover in January: 58
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in January
Beaverton, OR
- Average visibility in January: 5mi
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
